Are Peak Moment and Peak Torque Equivalents in Biodex Dynamometry Measurements?

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SUMMARY

Peak moment and peak torque are terms used in biodex dynamometry measurements, specifically in assessing knee muscle strength. While both terms are expressed in Newton-meters (Nm), they are not equivalent; peak moment refers to a broader concept involving any physical quantity, whereas peak torque specifically relates to rotational force. The distinction is crucial for accurate interpretation of dynamometry results in studies. Understanding these terms ensures clarity in reporting and comparing muscle strength outcomes.

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  • Understanding of biodex dynamometry and its applications in muscle strength assessment.
  • Familiarity with the concepts of torque and moment in physics and mechanics.
  • Knowledge of Newton-meters as a unit of measurement for torque.
  • Basic principles of rotational dynamics and force systems.
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  • Research the differences between torque and moment in mechanical engineering.
  • Explore the principles of biodex dynamometry and its measurement techniques.
  • Learn about the implications of torque measurements in clinical and sports settings.
  • Investigate how to accurately report and interpret dynamometry results in research studies.
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Researchers in biomechanics, physical therapists, sports scientists, and anyone involved in muscle strength assessment using biodex dynamometry.

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TL;DR
Peak Moment vs. Peak Torque in Knee Extension
Apologies if this is in the wrong section as it isn't particularly medical in nature despite it being about the body.

I am currently conducting a rapid review with outcomes of knee muscle strength. This is measured by biodex dynamometry, which assesses numerous values including Peak moment (Nm). My issue is that another study has also used the same equipment but reported values of (Nm) as peak torque which makes sense as the movement in question is rotational (Think bent knee -> straight knee, the peak force produced by this movement). My question is whether these two values are the same but have been reported differently or if it is a completely different value with the same unit of measurement.

Thanks!
 
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Welcome to PF.
What an engineer calls a moment, a physicist calls a torque.
The least confusing term would probably be torque.
 
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https://en.wikipedia.org/wiki/Moment_(physics) said:
In physics, a moment is an expression involving the product of a distance and physical quantity
So a moment can involve any physical quantity.
https://en.wikipedia.org/wiki/Torque said:
In physics and mechanics, torque is the rotational equivalent of linear force.
A torque is a moment that specifically involves a force.

And there is also a couple, which is a special case of a torque:
https://en.wikipedia.org/wiki/Couple_(mechanics) said:
In mechanics, a couple is a system of forces with a resultant (a.k.a.net or sum) moment but no resultant force.
So in the following figure, the top arrangement is a force producing a torque. But the bottom arrangement is a resultant force F (not producing a torque), and two forces C producing a couple. They both have the same effect on the system.

Force_and_couple.png
 
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Have both values the same magnitude in Newtons-meter?
 

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